Apparatus in the manufacture of ice



J. W. WHEATER.

APPARATUS IN THE MANUFACTURE OF ICE APPLICATION FILED JAN. 23.1918.

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J. W. WHEATER.

APPARATUS IN THE MANUFACTURE OF ICE. APPLICATION men JAN, 23.1918.

1,330,930. Patented Feb. 17, 1920.

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Inventor.-

Joh WiZZZ/ZZmW earlr, ZZQW, M V Q JOHN WILLIAM WHEATER, OF BOOTLE, NEAR LIVERPOOL, ENGLAND.

APPARATUS IN THE MANUFACTURE OF ICE.

Application filed January 23, 1918.

To all whom it may concern Be it known that 1, JOHN VVILLIAM- Virmarnn, a subject of the King of Great Britain, and residing in Bootle, near Liverpool, England, have invent-ed certain new and useful Improvements in Apparatus in the Manufacture of Ice, of which the following is a specification.

This invention relates to apparatus for the manufacture of ice, and has reference in particular to the construction of headers adapted to hold in position, and to connect to the trunk pipes of a circulating refrigerating medium, the inner and outer ver tical pipes forming the heat exchanging surfaces of ice making apparatus of the type described in the specification to British Letters Patent No. 13280, of 1909 and granted to James Barr.

According to the present invention the header is made in sections, each fitted with a spigot connection at the one end and a socket connection at the other, so that the sections can be assembled together to form continuous lengths; and the inner tubes are connected to the headers by means of screwed plugs fitting screwed recesses in the headers, which screwed plugs with the respective inner pipes, (which make joint with them) in position therein are adapted to be inserted in or to be removed from the headers through openings formed in the underside of the headers, and closed by the plugs or other suitable means.

The invention is illustrated in the accompanying drawings, in which Figures 1 to 6 illustrate a modification in which header midfeathers may be dispensed with; Fig. 1 being an elevation, showing the header and pipes in position in the bottom of the refrigerating tank, the latter and part of the header and pipes being in medial longitudinal section; Fig. 2 is a plan View partly in section on the line II II of Fig. 1, and Fig. 3 is a side elevation. Figs. 4, 5 and 6 are detail views of the plug; Fig. 4 being an elevation, partly in medial section; Fig. 5 a plan, and Fig. 6 a section on the line V1 VI of Fig. 1.

Fig. 7 is an elevation in medial section, similar to Fig. 1, but with the tank bottom omitted, of a modification; and Fig. 8 is a view similar to Fig. 7 of a further modification.

Referring first to Figs. 1 to 6, A is the header, B the outer pipes, C the inner pipes and D the tank bottom. The outer pipes B Specification of Letters Patent.

Patented Feb. 17, 1920.

Serial No. 213,391.

screw into the screwed bosses (1, the joint being made with solder b the tops of the bosses abut against a galvanized plate (P, which plate is separated from the tank bottom by the layer (Z of insulation; the insulation is also carried around the pipes B as at (Z and at (5* between the upper side of the bottom D of the tank and a galvanized plate (Z through which the pipes B pass. The headers are secured in position by means of studs, and flanges a.

Opposite each boss (4 there is provided a boss a the bore a of which is screwthreaded, the screwed part extending across the header and being concentric with the screwed part of the boss (4 but being of larger diameter; a. facing a is formed between these screwed parts.

E are plugs to take the inner pipes C; these plugs are screwed externally and screw into the bosses a until the nose of the plug makes joint with the facing a, the joint be- ,ing made with a lead or other suitable washer. The plugs E carry nuts 6 which which force the glands 6 into stufling boxes a formed in the lower part of the bore of the bosses cf,- the action of the gland forces a. suitable packing material into contact with the plug E and so makes the joint. The plug has a screwed bore 6 to take the screwed end of the pipe C, the upper part of which bore is recessed out at e to a larger diameter than that of the pipes C, and the recess is provided with a radial port 6 the bore is continued at 0 below the screwed part c and end of the pipe C, and is provided with a radial port 6 the ports 6 and c lead in diametrically opposite directions. The plug is provided with a square part c to take a spanner.

Successive headers are connected together by the spigot and socket flanges a and a7. Assuming that the refrigerant enters from the right as shown by the arrow F, it will pass through the port 6 then up the inner pipes C, then down the annulus be tween the pipes B and C, then through the upper radial port 6 and so to the lower radial port 6 of the next plug, and so on; or, of course, the flow may be in the reverse direction. Each plug blocks the direct path of the fluid (see right hand of sectional plan) along the header and constrains it to pass through the pipes as described.

Referring now to Fig. 7 In this modification, the plug E" has a screwed part c which screws into the screwed bore a of the mid-feather a formed across the header A between the bosses a and a. The plug E has a flange 6 which makes joint with the facing of the boss a and the lower end of the pipe C screws into the screwed part of the bore 6 of the plug E, which bore 6 is continued at 6 below the end of the pipe O and provided with radial ports e Assuming the direction of flow to be as shown by the arrow G in Fig. 7 the refrigerant passes through the radial ports a, thence by the bore 6 up the pipe C, then down the annulus between the pipes B and C, and so on to the ports 6 in the next plug; in this arrangement the joint between the plug E and the mid-feather constrains the refrigerant to flow through the pipes in the manner described.

Referring now to Fig. 8, the outer pipe B fits into the screwed part of the upper boss a while the plug E screws into the screwed bore of the mid-feather but does not extend down so as to close the opening in the lower boss at as before, this opening being closed by a separate plug H. The lower screwed end of the inner pipe C screws into a screwed part c of the bore of the plug E, the bore 6 of the plug being continued through the square part 6 of the plug.

To remove the plug E and the pipe 0 in position therein, the plug H is removed and the plug E and the pipe withdrawn through the opening in the boss 6.

Assuming the flow of the refrigerant to be as shown by the arrow K, Fig. 8, it enters by the bore 6 then up the pipe C, then down the annulus between the pipes 13 and C and so to the bore of the next plug E; or, of course, in this arrangement as well as in that of Fig. 7, the direction of flow may be reversed.

The header is usually located below the freezing tank as described, and suflicient space is left underneath to permit the removal of a plug and the inner pipe connected therewith, by withdrawal downwardly.

In some cases, instead of a stu'l'fing box and gland ring, the plug (which in this construction need not protrude) may be covered and held in with a cap which makes a faced joint against a suitable jointing surface on the lower face of the boss; and

when this construction of cap is adopted the cap may be employed to maintain the plug in position instead of the screw-threaded attachments described, in which case the plug and its seating in the header may be made of taper configuration after the manner of a plug cock.

I claim- 1. An ice making apparatus comprising a common header composed of a plurality of individual sections, dividing mid-feathers in said header, threaded openings in each mid-feather, plugs screwed into said openings, a series of pairs of concentric pipes connected to the common header, the outer pipes being'carried by bosses on said header and the inner pipes by the said plugs, the said plugs having passages extending from the bore of the inner pipes to the compartments on the sides of the midfeathers remote from the said pipes, whereby the refrigerating medium is caused, as it flows through the common header, to pass through the pairs of pipes in succession, substantially as described.

2. An ice making apparatus comprising a common header composed of a plurality of individual sections, dividing mid-feathers in said header, threaded openings in each mid-feather, plugs screwed into the common header through openings in the underside thereof, said plugs being screwed into the openings in the mid-feathers, a series of pairs of concentric pipes connectec to the common header, the outer pipes being carried by bosses on said header formed on the upper side of the header, and the inner pipes by the said plugs, covers on said plugs, which, when the plugs are in position, close the openings in the underside of the common header, the said plugs having passages extending from the bore of the inner pipes to the compartments on the sides of the mid-feathers remote from the said pipes, whereby the refrigerating medium is caused, as it flows through the common header, to pass through the pairs of pipes in succession, substantially as described.

In witness whereof I set my hand in presence of two witnesses.

JOHN WILLIAM WHEATER.

Witnesses:

JOSEPH E. HIRST, MARGUERITA JONES. 

